66 malvaoe^:. 



4. SIDA, Linn. Herbs with undivided leaves. Involucel (except 

 in ours where it is 3-bracteate as in the preceding). Calyx 5-cleft. 

 Stamineal tube simple. Stigmas capitate. Carpels 1-celled, 1-seeded, 

 dehiscent or indehiscent, forming a short conical fruit. Seed pendulous. 



1. S. hederacea (Dougl.), Torr. Perennial, stoutish, erect-spreading 

 or prostrate, very leafy, % — 1 ft. high, hoary- or yellowish-tomentose 

 throughout: leaves short-petioled, about 1 in. long, reniform, very 

 oblique at base, plicate, serrate or crenate: fl. axillary, solitary of several, 

 the pedicels slender: calyx subtended by 1 or 2 slender bractlets; lobes 

 acuminate: corolla % in. long, cream color: fr. short conical, smooth, 

 glabrous; carpels 6—10, triangular, 1J^ lines long. — A depressed hoary 

 weed, very common in low and subsaline clayey soils. 



5. MALVEOPSIS, Presl. Herbaceous or shrubby (ours mostly hoary- 

 tomentose shrubs), with usually angular foliage, and solitary or 

 racemose-panicled flowers. Calyx with an involucel of 1 — 3 bractlets, or 

 none. Stamineal tube simple; free filaments terminal and distinct. 

 Styles 5 or more; stigmas capitate. Carpels 1-seeded, bivalvate-dehiscent 

 or indehiscent. Seed ascending. 



1. M. Fremonti (Torr.). Suffrutescent, very stout, 2—3 ft. high, 

 densely white-lomenlose: leaves very thick, short-petioled, 1 — 3 in. long, 

 broadly ovate, cordate at base, slightly 3-lobed and crenate : fl. in short 

 axillary pedunculate racemose clusters: calyx ovate, % in. long, only 

 the setaceous tips of its lobes visible amid the deep and dense white 

 tomentum, almost equalled by the 3 linear setaceous involucral bractlets: 

 corolla % in. long, rose-color: carpels thin, smooth, promptly dehiscent. 

 — Mt. Diablo and southward. 



2. M. fascicnlata (Nutt.), O. Ktze. Usually 6—8 ft. high, often 

 larger and arborescent, the main stem a few inches thick; bark smooth, 

 gray; branches long, wand-like, slender, racemose or amply racemose- 

 paniculate above, these and the lower face of the leaves canescenlly 

 short-tomentose: leaves angularly 5-lobed and coarsely toothed, 1% — 3 

 in. long, and almost as broad: calyx-lobes triangular, as broad as long, 

 acute: corolla rose-purple, % in. long: carpels smooth, tomentose above, 

 promptly dehiscent: seed with a stellular-hairy minute reticulation. — A 

 very handsome shrub or small tree, common in S. Calif., reaching Mt. 

 Diablo, according to Rattan. 



3. M. arcnata. Size and general habit of the last but stouter; 

 leaves half as large, obtuse and with inconspicous rounded lobes, very 

 strongly rugose-veiny and white-tomentose beneath: interruptedly spicate 

 flowering branches stout, strongly recurved, the flower-fascicles all on 

 one side: corolla merely pinkish: carpels densely stellate-tomentose. — 

 Eastern slopes of the Coast Bange back of Belmont; wrongly referred 

 to M. marrubioides in the Flora Franciscana. 



